Post drives



(No Model.)

R. M. ST. JOHN.

POST DRIVER; No. 274,989. Patented Ap r.3, 1833.

' Inventor.-

. Rag.

witnesses.-

N D' *SrA E anddurablepost-driver, to be moved. abouton-I PATENT he OFFICE.

ROSGQE M. s'r. Joan, or ALBANY, INDIANA, ASSIGNOR or ONE-HALF To 1 LEWIS-R. s'r. JOHN, or SAME PLACE.

SPECIFICATION forming part ot' Letters Patent No. 274,989, dated April 3 1883.

' Application filed October 10,1882. (N model.)

Indiana, have invented a new and useful Post- Driver, of which the following is a specifier tion.

My invention relates to improvements in post-drivers; and the objects of my'improve nientsare, first, to construct. a cheap, simple,

th elrunning-gear otan ordinary wagon,;and;to

beoperated by one person. I attainthese ob jectsbythe meehanismillustrated' by the ac IFS.

lcompanying drawings, in which Figure'l is a perspective view of my inven-- tion'as ready for-- use,1and Fig. 2 is a viewof the top portion of the same,

Similar letters andjfigures refer to parts throughout the several views.

Tliedrame D of. my invention isso .constructedas to .beplaced upon the ordinary wagon, the cross-bars 0 being made to fitin between the standards. To the rear end of the similar frarneD are secured the blocks A B, forming a hingefor thelower part of the posts 0 c, The saidblocks are pivoted to the frame I), so as to allow;. the posts 0 c to be inclined backward.

or forward, as desired, a strap of iron, 8', being.

used'fo'rahinge, as the under sides of the blocks are'rounded, as shownin Fig. 1.] The upper portions of the blocks A B are provided with a touch, so as to fit in the slots out in the lower parts of the blocksAB, as shown in Fig.1,

bythe pins or boltss s. t The blocks AB and A B'are made to form a hinge for the lateral inclination of the aforesaid posts, so that they may be made to stand perpendicular independ entof the position of base D. The jratchet: bang and leverg'are secured tothe blockB,

as shown, so that the cogs in. the levergare made to engage with similar cogs in the lower end of the post 0. Just above the blocks AB are the slack winches f. They are provided with two small rollers,f,f'f, to which are secured g one end of the ropes m" mfl The said ropespass over the pulleys and 3 at the top of flthe tower, then down under ,thepulleys 4 ,5, and lthen wind around the rollert, as shown.

iThefrope m also winds aroun dithe said roller ,t, and is secured to the top of the tower, as show n. The rollerst t are secured on the top of the frame F, as shown, the roller 23 having'a double ratchet-wheel, i, and pawls i i, so as tostop it, when desired, from turning either way; The roller 15," is for the purpose of elevat- 'ing theweight b, the rope m being firmly secured to and winding around it, then passing downunderthe pulley 6, then up over pulley 1,: and down to the trip-block a, to which it is attached, the block a being made to slide up and down between the posts 0 c, which are firmly held together by the incline board 1;".

The lever a is attached to the block a by a staple, e. The lever is connected at its lower end to the hook a, which is hinged to the under side of the block a, the said hook being pressed outward at the top by the spring a, as shownin Fig. 2. When the block or falls down on the weight b, the hook a springs into the stapleb and holds the weight secure until the lever is pressed in at the top by being drawn to the top of the tower against the incline board 0, which pulls the hook out of the staple and allows the weight to drop independently upon the post to be driven.

When posts are to be driven in unlevel ground, the tower c 0 may be made to stand perpendicular by adjusting it backward or forward by turning the roller t.

When a post is to be driven it is placed in between the blocks A B, so that the weight b will strike centrally upon it. Then takehold of the crank a and wind the weight up until the lever a. strikes the incline board and trips the book so the weight will drop upon the post. Then let go of the crank, and the tripblock will drop down on the weight, thereby attaching in the staple b, and they are ready to be raised again, as before.

Having thus described my invention, 1 claim- 1.. In apost-driver, the weight b, staple I), hook a, rod .0, lever a, staple 0, spring a, and block a, all for the purpose set forth.

2. The tower c c 0, blocks A B A B, the winches fandpulleysflf, lever g, and bar .g, allfor the purpose set forth.

3. The frame D,- fratne F, rollers t t, ratchet ifa-nd pawls i '1', ropes m m m m, and pul- 1o 6. The combination of the blocks A. B A B,

straps s, and pins .9, with the tower 0 0 c and base D.

7. The combination of the winches f and pnlleysff with the ropes m m, pulleys 2 3 4 5, roller t, ratchet and pawls t i i, and

crank it, all for the purposeset forth.

ROSOOE MORTON ST. J OHN. Witnesses:

0. B. ST. JOHN, JARED S. LONG. 

